In the press release announcing the news, it highlighted "growing concerns about accidental or intentional introduction of foreign animal diseases into the country."
This process is expected to continue, as new organisms arrive through accidental or intentional introductions.
It concludes that the government has not developed "in-depth plans for defense against the intentional introduction of biological agents directed at agriculture."
A species whose presence is due to intentional or unintentional introduction as a result of human activity (Booth et al. 2003).
Such action will reduce the risk of an intentional introduction of these species into the Great Lakes.
Iron fertilization is the intentional introduction of iron to the upper ocean to stimulate a phytoplankton bloom.
These practical measures help to protect against natural disasters, as well as the unintentional or intentional introduction of plant or animal diseases.
The fungus has been found in several central and south European countries following the intentional introduction of Douglas fir.
In some instances, the intentional introduction of species for botanicals, medicinals, food or decorative products is accomplished using existing forests.
These intentional introductions are called wildlife "transplants" - or, in the case of fish, the activity is called "stocking."